Keyboard structure

Details Keyboard structure Keyboard structure

2006-12-05

2006-12-05

Friedhofer, Michael A. (Department: 2832)

Electricity: circuit makers and breakers

Solid contact

Membrane type

Reexamination Certificate

active

07145092

ABSTRACT:
A keyboard is disclosed comprising a rigid base member including at least a first surface; the base member including electrical circuitry structures, which structures define a plurality of connection zones on the first surface; the first surface of the base member including a plurality of grooves in order to connect at least some connection zones; a plurality of flexible, resilient domes covering said base member and being aligned with the connection zones on the first surface of the base member; the underside of each of said domes including a conductive surface that is capable of completing an electrical connection at said connection zone when said dome is deflected downwardly against said circuitry structures; wherein each connection zone communicates with at least one of said grooves in such a manner that the air present under said dome is forced into one of said grooves when said dome is deflected downwardly.

REFERENCES:
patent: 4046975 (1977-09-01), Seeger, Jr.
patent: 4460810 (1984-07-01), Fukukura
patent: 4570039 (1986-02-01), Osawa et al.
patent: 5901834 (1999-05-01), Inubushi et al.
patent: 6441330 (2002-08-01), Liao
patent: 6491456 (2002-12-01), Shih et al.
patent: 6531671 (2003-03-01), Yeh
patent: 6548778 (2003-04-01), Takahashi
patent: 0 322 515 (1989-07-01), None

Affiliated with

Also associated with

Rating

Keyboard structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Keyboard structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keyboard structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3700773